Nokia Files Patent Suits Against HTC, RIM, Viewsonic

Nokia Corp. said it filed claims at courts in the U.S. and Germany alleging that products from HTC Corp., Research In Motion Ltd. and Viewsonic Corp. infringe a number of its patents.

The claims came amid intensified patent disputes within the telecommunications and technology industries in recent years, notably between Apple Inc. and South Korean rival Samsung Electronics Co. On Wednesday, a German court upheld a request for an...